Fairchild Semiconductor has announced an ultra-small boost converter for space-constrained mobile and ultra-portable devices.

The FAN5665 is a high efficiency 5V/30mA adaptive charge pump boost converter packaged in a low profile, compact 1.21mm X 1.21mm WL-CSP package. It saves 20 percent board space compared to alternate systems, according to Fairchild.

For USB enabled devices needing a 5V I/O rail, Fairchild's FAN5665 provides a "quick fix" system, and can also be used to drive keypad LEDs in portable devices.

It features a low 0.625mm (max) profile and does not require a bulky inductor, according to the company, offering a slim solution for network cards or other thin portable applications.

Fairchild states that through the use of switch reconfiguration and fractional switching techniques, the FAN5665 achieves up to 92 percent efficiency and can support an input voltage range of 2.9V to 5.5V. In addition, the switches are pre-buffered to provide a low in-rush current which results in minimized noise on the supply line. Also, by not requiring an inductor, EMI noise is reduced, which could potentially save system designers time during the final stages of system verification.

The adaptive charge pump boost is part of Fairchild's portfolio of power conversion products.

The FAN5665 uses lead-free (Pb-free) terminals and has been characterized for moisture sensitivity in accordance with the Pb-free reflow requirements of the joint IPC/JEDEC standard J-STD-020. It is also designed to meet the requirements of the European Union's Directive on the restriction of the use of certain substances (RoHS).

Price (each, 1000 pcs):  US $0.82

Availability: samples available now

Delivery: 8 weeks ARO

Contact Information:

www.fairchildsemi.com/cf/sales_contacts/